Vacuum roller capable of adjusting air inflow

Abstract

The utility model relates to a vacuum roller capable of adjusting air inflow. The vacuum roller comprises a roller body, a width arranged in the roller body, a partition plate arranged in the width and an adjusting piece arranged in the width. The fabric width rotates in the roller body; the interior of the fabric width is divided into a first space and a second space by the partition plate; a first groove for communicating the first space with the second space is formed in the partition plate; the adjusting part is located in the first space, and the acting end of the adjusting part corresponds to the first groove. The second space corresponds to the air outlet; a first air inlet and a second air inlet are formed in the fabric width; the first air inlet corresponds to the first space; and the second air inlet corresponds to the second space. The problem that when a vacuum roller is used for dewatering paper, the efficiency can meet the requirement only when the air volume is too large due to too low efficiency, and therefore cost is increased is solved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum rollers, and in particular to a vacuum roller with adjustable air intake. Background Technology

[0002] In existing technology, after the pulp is uniformly treated in the papermaking process, due to the large amount of water in the pulp, it is necessary to press out the water during the paper forming process. Vacuum rolls are commonly used dewatering components on papermaking machines, and they play a decisive role in paper forming, dewatering, and the speed of the paper machine. They also play a key role in the physical properties, optical properties, and printability of the paper. When vacuum rolls dewater the paper, if the efficiency is too low, the air volume requirement will be too large to achieve the required efficiency, thereby increasing the cost. Utility Model Content

[0003] This application provides a vacuum roller with adjustable air intake, which solves the problem in the prior art where the vacuum roller is too inefficient when dewatering paper, resulting in an excessive air volume requirement to achieve the required efficiency, thus increasing costs.

[0004] The technical solutions adopted in the embodiments of this application are as follows.

[0005] An adjustable air intake vacuum roller includes a roller body, a flap disposed within the roller body, a partition disposed within the flap, and an adjusting member disposed within the flap; the flap rotates within the roller body; the partition separates a first space and a second space within the flap; a first groove is formed on the partition to connect the first space and the second space; the adjusting member is located within the first space and its actuating end corresponds to the first groove; the second space corresponds to an air outlet; a first air inlet and a second air inlet are formed on the flap; the first air inlet corresponds to the first space; the second air inlet corresponds to the second space.

[0006] As a further improvement to the above technical solution: the adjusting component is adjusted to 30% of the air volume in the first space.

[0007] As a further improvement to the above technical solution: the adjusting component includes a crossbar, a support component disposed on the door panel, and a sealing component that seals the first groove; the sealing component corresponds to the first groove, and an inclined surface corresponding to the first groove is provided on the side wall of the sealing component; the crossbar is threadedly connected to the support component; the sealing component is fixed to the crossbar; one end of the crossbar passes through the door panel and protrudes to the outside, thereby facilitating the adjustment of the distance between the sealing component and the first groove to control the air intake efficiency.

[0008] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0009] 1. By controlling the opening and closing degree of the first slot through the adjusting component, the airflow distribution between the first and second spaces can be adjusted in real time. This dynamic adjustment avoids the ineffective energy consumption caused by the traditional fixed airflow, allowing the vacuum roller to accurately match the actual needs during dewatering, significantly improving dewatering efficiency while reducing the fan load. The first and second spaces, separated by a partition, form a controllable airflow channel through the first slot. The partitioned design of the first and second air inlets optimizes the negative pressure distribution, reduces airflow turbulence, and enhances dewatering uniformity, thereby improving paper forming quality and physical properties. The adjusting component uses a threaded fit between the crossbar and the support component, combined with the inclined design of the sealing component, to finely adjust the distance between the sealing component and the first slot. This structure is easy to operate and highly accurate, ensuring the stability and repeatability of airflow control, adapting to the needs of different paper types or production speeds. By optimizing the airflow distribution and reducing ineffective airflow loss, the system airflow requirement is reduced by approximately 30%-50%, thus solving the problem of excessive power consumption. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the vacuum roller with adjustable air intake in this utility model.

[0011] Figure 2 This is a schematic diagram of the internal structure of the vacuum roller with adjustable air intake in this utility model.

[0012] In the diagram: 1. Roller body; 2. Width; 21. First space; 22. Second space; 23. First air inlet; 24. Second air inlet; 3. Partition; 31. First groove; 4. Adjusting component; 41. Crossbar; 42. Support component; 43. Sealing component. Detailed Implementation

[0013] This application provides a vacuum roller with adjustable air intake, which solves the problem in the prior art where the vacuum roller is too inefficient when dewatering paper, resulting in an excessive air volume requirement to achieve the required efficiency, thus increasing costs.

[0014] The technical solution in this application embodiment is to solve the above problems, and the overall idea is as follows:

[0015] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0016] An adjustable air intake vacuum roller includes a roller body 1, a span 2 disposed within the roller body 1, a partition 3 disposed within the span 2, and an adjusting member 4 disposed within the span 2. The span 2 rotates within the roller body 1. The partition 3 separates a first space 21 and a second space 22 within the span 2. A first groove 31 is provided on the partition 3 to connect the first space 21 and the second space 22. The adjusting member 4 is located within the first space 21, and the actuating end of the adjusting member 4 corresponds to the first groove 31. The second space 22 corresponds to the air outlet. A first air inlet 23 and a second air inlet 24 are provided on the span 2. The first air inlet 23 corresponds to the first space 21, and the second air inlet 24 corresponds to the second space 22.

[0017] Adjust the airflow of the first space 21 to 30% using the adjusting component 4.

[0018] The adjusting component 4 includes a crossbar 41, a support 42 disposed on the door panel 2, and a sealing component 43 sealing the first groove 31; the sealing component 43 corresponds to the first groove 31 and the side wall of the sealing component 43 is provided with an inclined surface corresponding to the first groove 31; the crossbar 41 is threadedly connected to the support 42; the sealing component 43 is fixed to the crossbar 41; one end of the crossbar 41 passes through the door panel 2 and protrudes to the outside, so as to facilitate the adjustment of the distance between the sealing component 43 and the first groove 31, thereby controlling the air intake efficiency.

[0019] The opening and closing degree of the first groove 31 is controlled by the adjusting component 4, allowing real-time adjustment of the airflow distribution between the first space 21 and the second space 22. This dynamic adjustment avoids the ineffective energy consumption caused by the traditional fixed airflow, enabling the vacuum roller to accurately match the actual needs during dewatering, significantly improving dewatering efficiency while reducing the fan load. The first space 21 and the second space 22, separated by the partition 3, form a controllable airflow channel through the first groove 31. The partitioned design of the first air inlet 23 and the second air inlet 24 optimizes the negative pressure distribution, reduces airflow turbulence, and enhances dewatering uniformity, thereby improving paper forming quality and physical properties. The adjusting component 4 uses a threaded engagement between the crossbar 41 and the support component 42, combined with the inclined design of the sealing component 43, to finely adjust the distance between the sealing component 43 and the first groove 31. This structure is easy to operate and highly accurate, ensuring the stability and repeatability of airflow control, adapting to the needs of different paper types or production speeds. By optimizing the airflow distribution and reducing ineffective airflow loss, the system airflow requirement is reduced by approximately 30%-50%.

[0020] The opening and closing degree of the first groove 31 is controlled by the adjusting component 4, allowing real-time adjustment of the airflow distribution between the first space 21 and the second space 22. This dynamic adjustment avoids the ineffective energy consumption caused by the traditional fixed airflow, enabling the vacuum roller to accurately match the actual needs during dewatering, significantly improving dewatering efficiency while reducing the fan load. The first space 21 and the second space 22, separated by the partition 3, form a controllable airflow channel through the first groove 31. The partition design of the first air inlet 23 and the second air inlet 24 optimizes the negative pressure distribution, reduces airflow turbulence, and enhances dewatering uniformity, thereby improving paper forming quality and physical properties. The adjusting component 4 uses a threaded engagement between the crossbar 41 and the support component 42, combined with the inclined design of the sealing component 43, to finely adjust the distance between the sealing component 43 and the first groove 31. This structure is easy to operate and highly accurate, ensuring the stability and repeatability of airflow control, adapting to the needs of different paper types or production speeds. By optimizing the airflow distribution and reducing ineffective airflow loss, the system airflow requirement is reduced by approximately 30%-50%, thus solving the problem of excessive power consumption.

[0021] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0022] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An air intake amount adjustable vacuum roll characterized by, The application relates to a roll body (1), a web (2) arranged in the roll body (1), a partition plate (3) arranged in the web (2) and an adjusting piece (4) arranged in the web (2); the web (2) rotates in the roll body (1); the partition plate (3) separates the web (2) into a first space (21) and a second space (22); the partition plate (3) is provided with a first groove (31) for connecting the first space (21) and the second space (22); the adjusting piece (4) is located in the first space (21) and the acting end of the adjusting piece (4) corresponds to the first groove (31); the second space (22) corresponds to an air outlet; the web (2) is provided with a first air inlet (23) and a second air inlet (24); the first air inlet (23) corresponds to the first space (21); the second air inlet (24) corresponds to the second space (22).

2. The variable air intake vacuum roll of claim 1, wherein, The air volume of the first space (21) is 30% after the adjusting piece (4) is adjusted.

3. The variable air inlet vacuum roll of claim 2, wherein, The adjusting piece (4) comprises a cross rod (41), a supporting piece (42) arranged on the web (2) and a sealing piece (43) for sealing the first groove (31); the sealing piece (43) corresponds to the first groove (31) and the sidewall of the sealing piece (43) is provided with an inclined surface corresponding to the first groove (31); the cross rod (41) is screw-connected to the supporting piece (42); the sealing piece (43) is fixed to the cross rod (41); one end of the cross rod (41) penetrates through the web (2) and leaks out of the outside so as to facilitate the adjustment of the distance between the sealing piece (43) and the first groove (31) and the control of the air inlet efficiency.

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